What books would you suggest for building a high school library?

My old high school, which my sister currently attends, is building up its library. The school is only four years old, and the library doesn't have very many books. What books would you consider to be "essential" to a high school library, or any library in general? Or how would you recommend the school... show more My old high school, which my sister currently attends, is building up its library. The school is only four years old, and the library doesn't have very many books. What books would you consider to be "essential" to a high school library, or any library in general? Or how would you recommend the school go about building up the library?

All suggestions are welcome, thank you.

Note: Twilight is already in the library, as are the Harry Potter and Eragon series.
16 answers 16